Inking mechanism



1935- c. w. HARROLD ET AL 2,022,717

INKING MECHANISM Filed Nov. 19, 1932 \m m @N WW m SW m m6 Patented Dec. 3, 1935 UNITED STATES PATENT OFFICE INKING MECHANISM Delaware Application November 19, 1932, Serial No. 643,402

12 Claims.

Our invention relates to improved inking mechanisms for printing machinery, and comprises more particularly an improved grouping of the different inking rolls with separate throwoff mechanisms for the several groups of inking rolls used for delivering the ink in uniform quantities through such rolls to the form or plate cylinder of a printing-press.

The objects of our invention are, among other things, to provide an improved inking mechanism of this character that permits an easy setting for the various rolls in their supporting frames, coupled with means for separating the compositioncovered rolls from the steel'rolls without disturbing the relative positions of such rolls and without removing the rolls from their socketed bearings, such means being actuated from a single manual movement by the pressman.

With these and other objects in view, our invention comprises certain constructions hereinafter described and then particularly pointed out in the appended claims. A preferred embodiment of our invention is shown in the accompanying drawing in Which- Fig. l is a side elevation of our inking mechanism located above the type or form cylinder of a printing-press;

Fig. 2 is an end elevation looking from the right of Fig. 1;

Fig. 3 is an enlarged plan view of a detail part shown in Fig. 1; and

Fig. 4 is an enlarged sectional view taken on the line 44 of Fig. 1.

Similar numerals refer to similar parts throughout the several figures.

Referring to Figs. 1 and 2 of the drawing, the form or plate-cylinder 4 of the printing-press is journalled in the press side-frames 5 (only one being shown), the four form inking rolls 6 (arranged in pairs) contacting with the cylinder 4 in the usual way to apply ink to the plate on this cylinder 4.

The pairs of form rolls 6 are separately carried in socketed bearings I carried in the ends of the swinging arms 9 and 9 respectively journalled on the shaft I!) of the inking drum the shaft Ill being rotatively mounted in the sideframes 5. Each of the swinging arms 8 and 9 carries on the shaft [2 distributing roll l3 journalled in the swinging arms 8 and 9 and the movable hangers l4 and IE (only one set being shown in the lower right side of Fig. 1), which support the socketed bearings in which the pairs of form rolls 6 are journalled and supported. The relative position of the two adjacent form rolls 6 are adjusted by the set screws l6 which are threaded in the interposed lug I! depending from the swinging arms 8 and 9 between the movable hangers 4 and IS, the heads of these set screws l6 bearing against the hangers 5 l4 and I5 and having clamping nuts adjacent the interposed lug N (Fig. 1).

The swinging arms 8 and 9 are simultaneously moved outwardly to carry the form rolls 6 out of contact with the cylinder 4 and inwardly to re- 10 store inking relation therewith by the following mechanism: The stub shaft |8 journalled in the side-frame 5 carries the hand-lever l9 and the pair of toggle-arms 26 with their respective toggle-links 2| having 'forked ends 22 working 15 against the pins 23 fastened to the under sides of the swinging arms 8 and 9.

The boss 24 fastened to the shaft l8 carries the lug 25 which engages the pin 26 in the side-frame 5 to limit the throw of the lever |9 when the tog- 20 gles 2!] and 2| are straightened to raise the form rolls 6 from the cylinder 4; the boss 24 also carries the lug 21 with the adjustable set-screw 28 (Fig. 1) also adapted to engage the pin 26 when the toggles 2!] and 2| are broken with the form 25 rolls 6 brought into inking contact with the cylinder 4 as shown in Fig. 1.

On either side of the inking drum II are the composition rollers 29 and 30, "each being journalled in the brackets 3| mounted on the stub 30 shafts 32 journalled in the bearings 33 bolted to the swinging arms 8 and 9 as shown in Fig. 1. The swinging caps 34 pinned at 35 to the brackets 3| are held in locked position by the thumb-screws 36 passing through the forked brackets 3'1 pinned .35 at 38 to the brackets 3| so as to removably hold the composition rollers 29 and 30 in position. Journalled in the side-frames 4 are the stubshafts 39 to which are fastened the hand-levers 40 and also the short rock-arms 4| to which 40 are pinned at 42 the curved links 43 having the slots 44 which engage the pins 45 fastened to the brackets 3|. Also pivoted to the pins 42 on the rock-arms 4| are the curved links 46 having the slots 41 which engage the pins 48 carried by the 45 arms 49 adjustably fastened to the swinging arms 8 and 9. The slots 41 are longer than the slots 44 as shown in Fig. 1. v

The composition roller 59 arranged between the inking drum H and inking drum 5| (shown 50 in outline in Fig. 1) is journalled in the bracket 52 slidably supported in the bearing 53 adjustably mounted on the top of the bracket 54 in the side-frame 4 (Fig. 2). The swinging caps 55 pinned at 56 to the bracket 52 removably hold the 55 the pins 59.

roller, 50 in position by means of the thumbscrews 51 passing through the heads of the forked brackets 53 pivoted to the bracket 52 by Only one set of these devices is shown in the figures.

Asshown in Figs. 1 and 3, the brackets 58 may be swung to a horizontal position (shown in dotted lines in Fig. 1) by loosening the screws 51 Irom engagement from the end of the bracket 52, and then the composition roller 50 may be manually withdrawn from contact drums II and (Fig. l).

The bracket 52 carries the depending lug 60 through which passes the screw-bolt 6| the tip of which bears against the bracket 54 to limit the movement of the bracket 52 toward the left in Fig. 1. The left end of the bracket 52 carri es the barrel 52 in which is mounted the compression spring 63 which bears against the eccentricstud 64 pinned to the extension arm 65 of the swinging arm 8. The eccentric stud 64 extends through the enlarged elliptical bore 66 formed in the bracket 52. By this construction which is shown in'detail in Fig. 4, the swinging arm 8, when first moved in a clockwise direction by the hand lever I9, does not affect the operative position of the roller 50 held in place in contact with the drums II and 5I by the force of the spring 63 bearing 7 through the bracket 52 against the screw-bolt 6|;

but when a greater clockwise movement is imparted tothe swinging arm 8 by the hand-levers 40 the side of the stud 64 moves across the bore 66 and engages the opposite side of such bore from that shown which causes thebracket 52 to be moved to the right (Fig. 1), thereby carrying the roller 50 out of contact with the drums I I and 5|. The lug B'I (Fig.1) on the hand levers 4B limits the drop of this handle when the inking mechanism is in operative position.

In normal operation the form-inking rolls Ii are lowered into contact with the cylinder 4 with the hand lever I9 in the position shown in Fig. 1, which also shows the other rolls in operative position. 7

Whenever the press is tripped for work to be done on the plate on the cylinder 4, the form-rolls 6 are slightly raised from the surface of the cylinder 4 by moving the hand-lever I9 in the direction of the arrow (Fig. 1) until the lug 25 strikes the pin 26 by straightening of the toggles 20, 2| which lift the swinging arms 8 and 9. The other rollers remain in contact and their setting is not disturbed so that ink will be distributed throughout the inking mechanism without contacting with the cylinder 4.

Whenever the press is to be idle for any length of time thereby causing the composition rollers 29, 39 and 50 to become flat where contacting with the steel rollers I I, I3 and 5|, the pressman lifts the hand-levers 46 which movement raises the form rolls 6 a considerable distance from the cylinder 4 through the links 46, while the composition rollers 29, 31} and 50 are moved out of contact with therrollers I3 and drums II and 5|.

This action is accomplished bythe links 43 raising the brackets 3| before the play in the slots 41 in the links 46 has been taken up on the pins 48 carried bythe arms 49 adjustably secured to the swinging arms 8 and. 9.

When the form rolls 6 are first .raisedby the hand-lever I 9, the composition roller 50 is held in contacting position with the drums II and. 5| by the. spring 63 which allows the extension 65 of the arm 8 to move clockwise without shifting the position of the bracket 52; however when a with the greater movement is imparted to the arm 8 by the lever 40 through the link 46, the side of the bore 66 engages the eccentric stud 64 which causes the bracket 52 to be moved to the right (Fig. 1) carrying with it the roller 50 away from contact 5 with the drums II and 5|.

The composition roller 50 may be removed from the bracket 52 by loosening thethumb-screws 5'! and then swinging the forked brackets 58 to their ho'rizontalposition (shown by dotted lines 10 in Fig. 1) so that it will rest on the bracket 52. The roller 50 is then rolled back on its shaft towardthe right as shown from which position it may be readily removed from the inking mechanism proper.

Our improved inking mechanism affords a construction whereby the form inking rolls 6 are given an easy accessibility so that they may be readily removed from their socketed bearings I, coupled with a sequential throw-01f whereby all the rollers are separated from their contacting drums so that they will not become damaged and so that they may also be washed without removal from their respective'supporting brackets.

Changes and variations may be made in the particular construction shown and described as one embodiment of our invention without departing from its essential principles or sacrificing its chief advantages; hence our improved inking mechanism is not to be confined to the construc. tion shown in the drawing.

We claim as our invention:

1. In an inking mechanism, form inking rolls, means for separating said rolls from the form without disturbing the inking position in respect l to the other rolls in said inking mechanism, means to limit the operation of said separating means when throwing off said rolls, and adjustable means to variably limit the movement of said separating means when restoring said rolls into contact with the form.

2. In an inking mechanism, form inking rolls, means for separating said rolls from the form, and a singlemechanism for separating other coacting rolls from their inking relation and further separating said form rolls from the form without affecting said form 'roll separating means. i

, 3. In an inking mechanism, form inking rolls, means for separating said rolls .from the form, and means for separating other coacting rolls from their inking rolls, said last means also mov-. ing said form rolls a greater distance from the form. V 1

4;. In an inking mechanism, form inking rolls, means for separating said rolls from the'form, means for separating other coacting rolls from their inking rolls, said last means also moving said form rolls a greater distance from the form, and means for varying the distance of the second movement of said form rolls.

5. In an inking mechanism, form inking rolls, means for separating said rolls from the form, inking drums, a composition roll coacting with said drums, and means for separating said composition roll from the drums, said last means also moving the form rolls a further distance from the form. V

'6. In an inking mechanism, form inking rolls, means for separating said rolls from the form, and independent meansfor further moving said rolls out of inking relation with'the form.

V 7. In an inking mechanism, form inking rolls; means for. separating said rolls a slight distance from the form, and independent means for further moving said rolls out of inking relation with the form.

8. In an inking mechanism, form inking rolls, means for separating said rolls from the form and holding them apart, and other means for separating said rolls a further distance from the form and holding them in such greater spaced relation.

9. In an inking mechanism, form inking rolls, means for separating said rolls from the form, independent means for separating said rolls a further distance from the form, and means for varying the distance of the second movement of said form rolls.

10. In an inking mechanism, form inking rollers, means for separating said rollers from'the form, and separate means for separating other contacting rollers from their inking rollers without separating the form rollers from their inking rollers, but moving said form rollers a further distance from the form.

11. In an inking mechanism, form inking rolls and separate independently-actuated means for moving said rolls to successive variably spaced distances from the form Without at any time disturbing their inking position relatively to their respective contacting rolls in said inking mechanism.

12. In an inking mechanism, form inking rolls and separate independently-actuated means for CHARLES W. HARROLD. CLYDE G. HORTON. 

